In position space, the structure of general scalar \(n\) -point functions has been understood for over fifty years [1]}.
A correspondingly general solution in momentum space was proposed only
recently in [2]}, [3]}.
This takes the form of a generalised
Feynman integral with the topology of an \((n-1)\) -simplex,
 
 O1(p1) ...On(pn)  =
1 i < j n d qij(2 )d f(q)qij2 ij + d k=1n (2)d ( pk + l=1n qlk ),

where the integration is taken over the internal momenta \({q}_{ij}\)  running between vertices of the simplex. Here \({q}_{ij}=-{q}_{ji}\)  runs from vertex \(i\)  to \(j\) , while the external momenta \({p}_i\)  enter only via momentum conservation as imposed by the delta function inserted at each vertex. Each propagator corresponds to an edge of the simplex, as illustrated in figure REF , and is raised to a power specified by the parameter \(\alpha _{ij}\) . Together, these satisfy the constraints
\( \Delta _i = - \sum _{j=1}^n \alpha _{ij},\) 
